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wiki:documentation:devguide:srs_module [2016/01/20 10:15]
lubia [Coordinate Transformation]
wiki:documentation:devguide:srs_module [2016/01/20 11:00]
lubia [Coordinate Transformation]
Line 39: Line 39:
 { {
   // ...   // ...
-  ​// requesting a pointer to a converter +  te::​srs::​Converter converter;
-  std::​auto_ptr<​te::​srs::​Converterconverter(new te::​srs::​Converter());+
  
-  converter->​setSourceSRS(4326); ​     // the SRS id for geographic coordinates over a WGS84 datum +  converter.setSourceSRID(4326); ​     // the SRS id for geographic coordinates over a WGS84 datum 
-  converter->​setTargetSRS(31985);     // the SRS id for projected coordinates of UTM / WGS84 datum, Zone 17 South+  converter.setTargetSRID(32723);     // the SRS id for projected coordinates of UTM / WGS84 datum, Zone 23 South
  
   // Converting a single coordinate   // Converting a single coordinate
-  double llX = -45.5+  double llX = -45.0
-  double llY = -23.0;+  double llY = 0.0;
  
   double xyX;   double xyX;
   double xyY;   double xyY;
  
-  converter->convert(llX,​llY,​xyX,​xyY); +  converter.convert(llX,​llY,​xyX,​xyY);​
-  converter->​invert(xyX,​xyY,​llX,​llY);+
  
-  ​// Converting a list of coordinates +  ​std::​cout.precision(10);​ 
-  ​double* xs new double[3]+  ​std::cout << "​EPSG:​4326 (" << llX << ","​ << llY << "​) ​=> "
-  ​double* ys = new double[3];+  ​std::cout << "​EPSG:​32723 (" << xyX << ","​ << xyY << "​)\n"​;
  
-  ​xs[0] = -45.5+  ​llX = -44.0
-  ​xs[1] -45.6+  ​llY 0.0
-  ​xs[2] = -45.7;+  ​converter.convert(llX,​llY,​xyX,​xyY);
  
-  ​ys[0] = -23.0+  ​std::cout.precision(10)
-  ​ys[1] -23.1+  ​std::cout << "​EPSG:​4326 (" << llX << ","​ << llY << "​) ​=> "
-  ​ys[2] = -23.2; +  ​std::cout << "​EPSG:​32723 ​(" << xyX << "," << xyY << ")\n";
- +
-  converter->​convert(xs,ys,3,1);+
 // ... // ...
 } }